Idk if we are broken up

My bf and I have been together for 4 years. We have little arguments here and there. But lately we have grown closer and are happy together. We went on a mini vacation last week and we had so much fun. He told me how much he loves me and wants to marry me. We were even looking for a house to move into

Yesterday when I got off work at 7pm and came home, he FaceTimed me and I missed his calls. Then I was doing laundry and he FaceTimed me a few more times and I missed the calls.

I went upstairs and FaceTimed him back. He was in a bar drinking. He then started texting me and saying that I lie to him about where I am. And I never answer his phone calls.

He’s the one at a bar and I’m home and he’s worried about what I’m doing ???

Anyways, he cussed me out all night and broke up with me. I texted him this morning and he never replied. 😔

I don’t understand what happened last night. I had such a good day and then he cussed me out and broke up with me just because I didn’t answer his FaceTime calls. I’m thinking he was drunk and that’s why he acted like that. But this morning he didn’t text me to apologize for acting like an asshole.